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G. O. RUND.

GR AIN SEPARATOR.

APPLICATION FILED OCT. 1914.

1,1 94,788. PatentedAug. 15,1916.

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BY HIS ATTORNEYS wwgdw @Mm G. O. 'RUND GRAIN SVEPARATOR. APPLICATION menOCT. 8. 1914.

Patented Aug. 15, 1916.

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GUSTAV O. RUND, OF CHRISTINE, NORTH DAKOTA.

GRAIN- SEPARATOR.

Application filed October 8, 191 1.

To (ZZZ whom it may concern.-

Be it known that I, Gusrav O. RUND, citizen of the United States,residing at Christine, 'in the county of Richland and State of NorthDakota, have invented cer tain new and useful Improvements in Grain-Separators; and I do hereby declare the fol lowing to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved grain separator,especially adapted for use in separating wild oats from grain; and, tothis end, generally stated, it consists of the novel devices andcombinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illust ate the invention, likecharacters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a plan view of the improvedseparator, some parts being broken away; Fig. 2 is a right sideelevation of the improved separator; Fig. 3 is a front elevation of thesame, some parts being broken away and some of the exposed parts beingshown in section; Fig. 1 is a longitudinal vertical section taken on theline of m of F 3; Fig. 5 is a detail vie v, partly in elevation andpartly in section, taken on the line 00 of Fig. 8, on an enlarged scale;and Fig. 6 is a view principally in elevation, with some parts sectionedon the line 00 0c of Fig. 5.

The fixed frame of the improved separator comprises a pair of frontposts 1 and rear posts 2, connected in rectangular arrangement by sideand end bars 8. In the upper portions of the rear posts 2 is journaled atransverse horizontal shaft a. Hung on this shaft t for verticalswinging movement is an elevator frame 5. The shaft 4: extends throughthe side plates of the elevator frame 5 rearward of their transversecenters, thereby causing the forward or heavy end of said frame to swingdownward under the action of gravity. To adjustably support the elevatorframe in different oblique positions is provided a depending hanger bar6, rigidly secured at its lower end to the intermediate portion of atransverse bar 7. The ends of this bar 7 are reduced to afford trunnionswhich are journaled inthe side plates of the elevator frame Formed inthe hanger bar 6 is a plurality of longitudinally spaced Specificationof Letters Patent.

Patented Aug. 15, 1916.

Serial No. 865,653.

- set in different angular adjustments.

In the lower end of the elevator frame 5 is journaled a horizontal idleroller 10 and journaled in open seats in the upper end of said frame isa driven roller 11. Mounted to run over the rollers 10 and 11 is an endless elevator apron 12, having a fuzzy upper working surface, ,ich ascanton flannel. The purpose of this fuzzy surface, as is well known, isto catch the wild oats and poor grain and separate the same from theother grain.

Keyed to the right hand end of the shaft 1 is a relatively largesprocket wheel 13 and a relatively small sprocket wheel let. Thesprocket wheel 13 is provided with a hand crank 15, by which the shafti: is rotated. A sprocket chain 16 runs over the sprocket wheel l l andan alined sprocket wheel 17, keyed to the upper roller 11. Journaled independing edge extensions 18 of the side plates of the elevator frame 5,is a fan, comprising crossed arms 19, intermediately secured to theshaft of said fan, and horizontal bars 20 secured to the outer ends ofthe arms 19. This fan is so mounted that the outer longitudinal edges ofits bars 20 engage the under run of the apron 12 and act as scrapers toremove the wild oats therefrom. The fan is driven in the direction ofthe arrow marked on Fi at, by a sprocket chain 21, which runs over thesprocket wheel 13 and an alined sprocket wheel 22', keyed to the shaftof said fan. A deck 23, underlying the apron 12, extends from the upperend of the frame 5 downward over the extensions 18 and terminates in aspout 2st, into which all grain and wild oats, carried upward over saidapron, is delivered and carried to one side of the separator.

Bigidly secured to the side plates of the elevator frame 5 is an openbottom hopper 25, arranged to hold the grain to be separated and deliverthe same onto the upper run of the apron 12, intermediately between therollers 10 and 11. A gate 26 is mounted in the bottom of the hopper 25to regulate the flow of grain onto the apron 12. This gate 26 isoperated by a lever 27, pivoted to the hopper 25 and intermediatelyconnected to the said gate by a link 28.

Retarding plates 29 are provided to pre vent the grain from rolling offfrom the apron 12 before the wild oats and poor grain has a chance toadhere to the fuzzy working surface of said. apron. These retardingplates 29 extend transversely of the apron 12, one in advance of theother, below the point where the grain is delivered from the hopper 25onto the apron, and are rigidly secured to a pair of arms 30. Said armsare pivotally secured to the inner faces of the side plates of the frame5 and extend upward between the said plates. Obviously, by raising andlowering these arms, the lower longitudinal edges of the retardingplates 29 may be set in different adjustments with respect to the upperrun of the apron 12 to regulate the flow of grain thereunder. To preventthe upper run of the apron 12 from sagging too much under the weight ofgrain delivered thereon from the hopper 25, is provided a transverse rod31 extended between the upper and lower runs of said apron and securedat its ends to the side plates of the elevator frame 5. T 1e frictionalengagement of the arms 30 with the side plates of the elevator frame 5is sufficient to hold the retarding plates 29 in different setpositions.

Operation: The operation of the improved grain separator may be brieflystated as follows: The grain to be separated is .placed in the hopper25, and the crank 15 turned in the proper direction to cause the upperrun of the apron 12 to move upward. The flow of grain onto the apron 12is regulated by the gate 26 and is prevented from rolling off from theapron too quickly by the retarding plates 29. The wild oats and poorgrain will be carried upward on the apron 12 and all the loose grainwill be delivered onto the deck 23. The wild oats and small grain heldby the fuzzy surface of the apron will be blown or scraped therefrom bythe blades of the fan and delivered into the discharge spout 24. Allgood grain will roll downward on the apron 12, under the retardingplates 29, and be delivered into a receptacle or onto the floor. Theinclination of the apron 12 may be varied, at will, to secure the bestseparation of the grain, by adjusting the hanger bar 6 on the stud 9.

The above described invention has, in actual usage, proven highlyefficient for the purpose had in view.

\Vhat I claim is 1. A separator of the kind described, in cluding atraveling endless apron, having an upwardly moving inclined surface,means for distributing grain onto said upwardly moving inclined surface,a pair of arms pivotally secured for swinging movement toward and fromsaid upwardly moving inclined surface, and a g 'ain retarding platesecured to the free ends of said arms.

2. A separator of the kind described, including a traveling endlessapron, having an upwardly moving inclined surface, means fordistributing grain into said upwardly moving inclined surface, a pair ofarms pivotally secured for swinging movement to ward and from saidupwardly moving inclined surface, and a pair of grain retarding platessecured to said arms, one in advance of the other, at points below thedelivery of the grain onto said upwardly moving inclined surface.

In testimony whereof I affix my signature in presence of two witnesses.

GUSTAV O. RUND.

lVitnesses:

I. J. STRAND, It. XV. Eco.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. G.

